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Why should this EP do this when it has worked fine with 6, 8, and 10"
Newts and an 8" SCT. Even if you are both right, what on earth are the
longtitudinal lines through the aberrations at the left of the first image?
{my guess is where the two mirrors meet inside the diagonal}. Also,
what are the crescent shaped lines at one end of the brighter aberrations
in the 3rd image?
raymo
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